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Small Size in Living Cells

The small size in living cells can best be attributed to which of the following factors:

- the small size of most molecules

- the large number of the cells that are necessary to form an organism

- the rare favorable surface-to-value ratio of smaller cells

- the short life spans of large animals

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The third statement would be the most accurate but I believe you meant to say the surface-to-volume ratio.

The size of cells can be quite variable and depend to a great deal on the function that they have within the body or in development.

For example the yolk of a bird egg is actually a whole cell and some neurons can be many centimeters long. The limit to the ...